Employer mandate

Medicaid

Obamacare: Expands Medicaid coverage to people living within 138 percent of the poverty level. It includes federal payment of more than 90 percent of the cost of those made eligible under the law's expansion until 2020, when federal payments for those made eligible under the law is capped at 90 percent.

Proposed replacement: Keeps Medicaid expansion until 2020. After that, federal funding would be capped. New enrollees and those who come back into the program would receive reduced funding. It also cuts Planned Parenthood's funding for one year.

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Tax credits, subsidies

Obamacare: Tax credits are based on income and cost of health insurance plan. Additional dollars are provided to reduce deductibles and copayments.

Proposed replacement: Tax credits are based on age, rising as people get older. Those tax credits would be available for individuals up to $75,000 and households earning less than $150,000. Eliminates subsidies for out-of-pocket costs.

Penalty

Obamacare: Requires adults to purchase insurance or face a penalty come tax time. In 2016, the penalty for the uninsured was $695 per adult or 2.5 percent of income, whichever is greater.

Proposed replacement: Eliminates the individual mandate but offers a continuous coverage incentive. Insurance companies could add a 30 percent surcharge for people who let their coverage lapse and then want to buy a plan.

Pre-existing conditions

Obamacare: Prevents insurance companies from denying coverage to people with pre-existing health problems.

Proposed replacement: Keeps protection for people with pre-existing conditions. States could use federal money to create high-risk pools.